1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tangare [24]
3 years ago
8

I NEED HELP PLS!!!!

Mathematics
1 answer:
hram777 [196]3 years ago
5 0

Answer:

15

Step-by-step explanation:

For these kind of problems, its best to use a Venn Diagram.

Lets break down the information:

<em>There are 50 students total.</em>

<em>25 take Math competiton classes.</em>

<em>29 take Geometry</em>

<em>12 take history and </em><em><u>no math classes</u></em>

<em>19 take </em><em><u>both math classes</u></em>

Now, make a Venn Diagram.

[Look at the photo attached. Also, the blank spaces in the Venn Diagram are ones that no student takes.]

The 12 taking history and no math classes and 3 kids not taking any of those classes look like they're the only ones not taking either math class.

12 + 3 = 15.

So the answer is 15.

[I'm not sure if this is correct or if I made a mistake so please let me know! Thank you! I hope this helps!]

:)

You might be interested in
Select all trips that would take 3 hours,
Leno4ka [110]

Answer:

A and D

Step-by-step explanation:

7 0
2 years ago
Ad is tangent to circle o at d. find ab. round to the nearest tenth if necessary
Naddik [55]
Check the picture below.

\bf 0=AB^2+6AB-121\implies \stackrel{\textit{using the quadratic formula}}{AB=\cfrac{-6 \pm \sqrt{6^2-4(1)(-121)}}{2(1)}}&#10;\\\\\\&#10;AB=\cfrac{-6 \pm \sqrt{520}}{2}\implies AB=\cfrac{-6 \pm \sqrt{4\cdot 130}}{2}&#10;\\\\\\&#10;AB=\cfrac{-6 \pm \sqrt{2^2\cdot 130}}{2}\implies AB=\cfrac{-6 \pm 2\sqrt{130}}{2}&#10;\\\\\\&#10;AB=-3\pm\sqrt{130}\implies AB=&#10;\begin{cases}&#10;\boxed{-3+\sqrt{130}}\\\\&#10;-3-\sqrt{130}&#10;\end{cases}

since the distance AB cannot be a negative value, thus is not -3-√(130).

3 0
3 years ago
Read 2 more answers
A movie complex is showing the same movie and three theaters in theater and a 60 of the 80 seats are taken and theater B 42 seat
Anna [14]

Answer:

Theatre C.

Step-by-step explanation:

Theatre A:

60 of the 80 seats are taken.

% seats taken = seats taken/total seats * 100

= 60/80 * 100

= 75%

Theatre B:

Total seats = number of seats taken + number of empty seats

= 42 + 18

= 60

% seats taken = seats taken/total seats * 100

= 42/60 * 100

= 70%

Theatre C:

Total seats = number of seats taken + number of empty seats

90 = X + 18

X = 72

% seats taken = seats taken/total seats * 100

= 72/90 * 100

= 80%

Theatre C with 80% of seats taken.

4 0
3 years ago
Read 2 more answers
What digits can be in the ones place of a number that has five as a factor?
choli [55]
There can be 0s and 5s
7 0
3 years ago
Solve the following quadratic equation by the square root property of equality. x^2 - 81 = 0
Misha Larkins [42]
X²-81=0,
x²=81,
x=√81,
x=9
6 0
3 years ago
Other questions:
  • If the quotient is 12 and the dividend is 288 what is the divisor
    6·1 answer
  • Help me with 22 and 23
    7·1 answer
  • Eight-tenths gran of a chemical is put into each jar. How many jars can be filled with 192 grams of the chemical?
    15·1 answer
  • Solve -5 + w/3 = 1<br> 12<br> -12<br> 2<br> -2
    13·2 answers
  • The statement "The measure of an angle is equal to itself is true because of what property?
    7·1 answer
  • If A and B are independent events, then it must be true that P(BIA) = P(A).
    5·1 answer
  • Alyssa bought a dress for $52 and 3 pairs of jeans. She paid a total of $125. Write an equation to represent this word problem
    12·2 answers
  • Which is the polynomial function of lowest degree with leading coefficient of 4 and roots 7 and 3?
    8·1 answer
  • Trish is sorting bolts for her home repair business. She has an 8-pound bag of bolts. If each kitchen her team repairs requires
    14·1 answer
  • suppose a parabola has an axis of symmetry at x=-2, a maximum height of 8, passes through the point (-6, 2). Wrire the equation
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!